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Photovoltaic power station theoretical power calculation method based on classification sample inverters

A technology of theoretical power and photovoltaic power plants, applied in photovoltaic power generation, calculation, electrical digital data processing, etc., can solve problems such as inaccurate calculation of theoretical power of photovoltaic power plants, affecting grid dispatching and control of photovoltaic power plants, and achieves the goal of facilitating scheduling and reducing deviations Effect

Active Publication Date: 2016-03-09
BEIJING SIFANG JIBAO AUTOMATION +1
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for calculating the theoretical power of a photovoltaic power station based on a classified model inverter, which is used to solve the problem that the theoretical power calculation of a photovoltaic power station is not accurate and affects the grid dispatching and regulation of a photovoltaic power station

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  • Photovoltaic power station theoretical power calculation method based on classification sample inverters

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[0026] The technical solution of the present invention will be described in further detail below in combination with specific examples according to the drawings in the description.

[0027] Such as figure 1 As shown, a method for calculating the theoretical power of photovoltaic power plants based on classified model inverters includes the following steps:

[0028] Step 1: Group the inverters of the photovoltaic power station according to the inverter model and rated capacity. First, group the inverters according to the inverter model. Inverters within a model are grouped according to different capacities, and inverters of the same model with the same capacity are divided into one category, with a total of M groups;

[0029] Step 2: Classify the inverters in the same group according to the actual power at different times, including the following steps:

[0030] 2-1: Make sure that the inverters of the i-th group (1≤i≤M) are all in the full power state, and there are N invert...

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Abstract

The invention discloses a photovoltaic power station theoretical power calculation method based on classification sample inverters. The method comprises the following steps: according to different types and rated capacities of inverters, photovoltaic power station inverters are grouped; as for inverters in the same group, classification is carried out according to a different actual power at a different time; the actual power of a sample inverter in each class is determined, and an increasable power of each class of inverters is calculated; the increasable power of each inverter group is calculated; and the theoretical power of the overall photovoltaic power station is calculated. The theoretical power of the photovoltaic power station can be accurately calculated, reasonable dispatching by a power grid is facilitated, and as for a large photovoltaic power station with a large number of inverter, a large occupied area and not concentrated inverter distribution, deviation between the theoretical power and the maximal actual power can be effectively reduced, and a reliable basis is provided for reasonably and effectively controlling power of the photovoltaic power station.

Description

technical field [0001] The invention relates to a method for calculating the theoretical power of a photovoltaic power station based on a classified model inverter, which is suitable for optimal scheduling after the photovoltaic power station is connected to a power grid, and belongs to the technical field of new energy sources in electric power systems. Background technique [0002] In recent years, due to the rapid development of the photovoltaic industry, large-scale grid-connected photovoltaic power generation has become an important development trend of the photovoltaic industry. to the electricity side. [0003] In order to reduce the fluctuation of the power grid caused by the uncertainty of the light intensity of the photovoltaic power station, the power grid dispatching needs to control the output power of the photovoltaic power station in real time. At present, the basis for scheduling real-time control of photovoltaic power plants is, on the one hand, the power p...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38G06F19/00
CPCH02J3/383H02J2203/20Y02E10/56
Inventor 王申强王一鸣韩敬涛刘春雷余斌刘刚
Owner BEIJING SIFANG JIBAO AUTOMATION
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